﻿using System.Linq.Expressions;
using Common.DataModels;

namespace BaseService;

public interface IBaseService<TEntity> where TEntity:BaseEntity<TEntity>
{
    /// <summary>
    /// 根据条件查询单个实体
    /// </summary>
    /// <param name="whereExpression"></param>
    /// <param name="isTracking"></param>
    /// <returns></returns>
    Task<TEntity?> GetEntityAsync(Expression<Func<TEntity, bool>> whereExpression, bool isTracking = false);
    /// <summary>
    /// 根据条件查询实体
    /// </summary>
    /// <param name="whereExpression"></param>
    /// <param name="isTracking"></param>
    /// <returns></returns>
    Task<List<TEntity>> GetEntitiesAsync(Expression<Func<TEntity, bool>> whereExpression, bool isTracking = false);
    /// <summary>
    /// 根据条件查询多个实体
    /// </summary>
    /// <typeparam name="TKey"></typeparam>
    /// <param name="whereExpression"></param>
    /// <param name="orderStr"></param>
    /// <param name="isAsc"></param>
    /// <param name="isTracking"></param>
    /// <returns></returns>
    Task<List<TEntity>> GetEntitiesByOrderAsync(Expression<Func<TEntity, bool>> whereExpression, string orderStr = "", bool isTracking = false);
    /// <summary>
    /// 根据条件分页查询和排序
    /// </summary>
    /// <typeparam name="TKey"></typeparam>
    /// <param name="whereExpression"></param>
    /// <param name="orderStr"></param>
    /// <param name="pageIndex"></param>
    /// <param name="pageSize"></param>
    /// <param name="isAsc"></param>
    /// <param name="isTracking"></param>
    /// <returns></returns>
    Task<Tuple<List<TEntity>, int>> GetEntitiesByPageAsync(Expression<Func<TEntity, bool>> whereExpression, string orderStr = "", int pageIndex = 1, int pageSize = 20, bool isTracking = false);
    /// <summary>
    /// 根据条件分页查询
    /// </summary>
    /// <typeparam name="TKey"></typeparam>
    /// <param name="whereExpression"></param>
    /// <param name="pageIndex"></param>
    /// <param name="pageSize"></param>
    /// <param name="isTracking"></param>
    /// <returns></returns>
    Task<Tuple<List<TEntity>, int>> GetEntitiesByPageAsync(Expression<Func<TEntity, bool>> whereExpression, int pageIndex = 1, int pageSize = 20, bool isTracking = false);
    /// <summary>
    /// 添加实体
    /// </summary>
    /// <param name="entity"></param>
    /// <returns></returns>
    Task<int> CreateAsync(TEntity entity);
    /// <summary>
    /// 添加实体
    /// </summary>
    /// <param name="entities"></param>
    /// <returns></returns>
    Task<int> CreateAsync(IEnumerable<TEntity> entities);

    /// <summary>
    /// 高效批量插入
    /// </summary>
    /// <param name="entities"></param>
    /// <returns></returns>
    //public Task BulkInsert(IEnumerable<TEntity> entities);
    /// <summary>
    /// 更新实体
    /// </summary>
    /// <param name="entity"></param>
    /// <returns></returns>
    Task<int> UpdateAsync(TEntity entity);
   
    /// <summary>
    /// 删除实体
    /// </summary>
    /// <param name="ids"></param>
    /// <returns></returns>
    Task<int> DeleteAsync(IEnumerable<long> ids);
}